8_7/8x19_1/8x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack Hydro Systems After transplant continue to use

After transplant continue to use G-Rex in your system at the recommended rate through harvest

ACTUAL MEASUREMENTS: 9'-5'' x 4'-9'' x 6'-7''

Castings can be applied as a top dressing

Case Quantity is: 6

8_7/8x19_1/8x1 MERV 10 Plus Carbon AC Furnace Filters 6 Pack Hydro Systems After transplant continue to useNordic Pure Custom MERV 10 Plus Carbon air filters are made based on the actual measurements so be sure to measure your current filter to get the EXACT dimensions before ordering. As with all Nordic Pure filters, the effective life of your filter depends on the environment in which you live. We recommend changing 1 and 2 filters every 30 90 days. Our 4, 5 and 6 inch thick filters could last up to 6 months. EXACT MEASUREMENT: Furnace and air condition